#include<stdio.h>
void main()
{
    int button;
    printf("==========Auto Drinking Machine==========\n");
    printf("1.A\n");
    printf("2.B\n");
    printf("3.C\n");
    printf("4.D\n");
    printf("5.E\n");
    printf("please choose from 1-5:\n");
    scanf("%d",&button);
    switch(button){
        case 1:printf("\nyou are getting a 'A'\n");break;
        case 2:printf("\nyou are getting a 'B'\n");break;
        case 3:printf("\nyou are getting a 'C'\n");break;
        case 4:printf("\nyou are getting a 'D'\n");break;
        case 5:printf("\nyou are getting a 'E'\n");break;
        default:printf("\nerror\n");break;
    }
}